Question

4(x-1)-(9x-1)=7 уровнем​

Answer 1

4х-4-9х+1=7

5х=-10

Х=-2

Answer 2

To solve the equation 4(x-1)-(9x-1) = 7, we will follow these steps:

Step 1: Distribute the numbers outside the parentheses. Step 2: Combine like terms. Step 3: Isolate the variable on one side of the equation. Step 4: Solve for the variable.

Let's go through each step in detail:

Step 1: Distribute the numbers outside the parentheses: 4(x - 1) - (9x - 1) = 7

Distribute the 4 on the left side of the equation: 4x - 4 - (9x - 1) = 7

Step 2: Combine like terms: Now, let's simplify the equation by combining like terms: 4x - 4 - 9x + 1 = 7

Step 3: Isolate the variable on one side of the equation: Combine the x terms on the left side of the equation: (4x - 9x) - 4 + 1 = 7 -5x - 3 = 7

Step 4: Solve for the variable: To solve for x, isolate it by moving the constant term to the other side of the equation: -5x = 7 + 3 -5x = 10

Now, divide both sides by -5 to solve for x: x = 10 / -5 x = -2

The solution to the equation is x = -2.